What is the integral of 2e^{4t} ?

The integral of 2e^{4t} is 1/2 e^{4t}+C

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integral of 2e^{4t}

\int 2 e^{4 t} d t

\frac{1}{2} e^{4 t} + C

Solution steps

\int 2 e^{4 t} d t

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 2 \cdot \int e^{4 t} d t

Apply u-substitution

: \int e^{u} \frac{1}{4} d u

= 2 \cdot \int e^{u} \frac{1}{4} d u

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= 2 \cdot \frac{1}{4} \cdot \int e^{u} d u

Use the common integral:

\int e^{u} d u = e^{u}

= 2 \cdot \frac{1}{4} e^{u}

Substitute back

u = 4 t

= 2 \cdot \frac{1}{4} e^{4 t}

Simplify

2 \cdot \frac{1}{4} e^{4 t} : \frac{1}{2} e^{4 t}

= \frac{1}{2} e^{4 t}

Add a constant to the solution

= \frac{1}{2} e^{4 t} + C

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